Automatic jack.



- B. EQWINKLEY;

AUTOMATIC JACK. APPLICATION FILED SEPT. 1 1898.

Patented Mar-4,1913.

m-annmwmnm 1.

5. E. WINKLEY.

AUTOMATIC JAOK.

. APPLIOATIOH FILED SEPT. 14, 1898.

Patented Mar. 4,1913.

10 SHEETS-SHEET 2.

- E. E. WINKLEY.

Auwom'rmmcx. APPLICATION FILED SEPTA-1,1598. V 1,054,733., Patented Mar. 4, 1913.

10 EEBETS-BHEET 3.

Wsss;

E. E. WINKLEY.

AUTOMATIC JACK. APPLIOATION FILED SEPT. 1 1898.

10 SHEETS-SHEET 4.

E. E. WINK LEY. AUTQMATIG JACK. APPLICATION FILED KEPT. 1Q, lBQ B.

Patented Mar. 4, 1913 10 BHEBTS BHBET 5.

nullifinlnw IIIIIHIHJ E. E. WINKLEY. AQTOMATIG JApK. APPLICATION FILED SHIT. 14, 189k}. v

Patel lted Mar. 4, 1913.

1Q SHEET8BHEET 6.

E. B. WINKLEY. AU pMATIO' JACK. APPLICATION mm SEPT.14, 139s.

-1 ,054mm. Y Patented Mala 1913.

16 sums-skim 7.

E. B. 'WINKLEY.

AUTOMATIC JACK. I I 7 APPLICATION FILED SEPT. 14, 1898.

10 SHEETS-SHEET 8.

Patented Mar. 4, 1913.

See.- 3Z7? E. E. WINKLET I AUTOMATIC JACK. APPLIOATIQN FILED SEPT. 14. 1898,

1 3 Patented Mai-.4,1913

1o gums-sums.

. E. B. WINKLEY,

AUTOMATIC JACK- APPLICATION FILED SBPT.14, 1898.

1,054,733, Pajnented Mar-4,1913.

10 SHEETS-SHEBTlO.

e 6 ,20 me UNITE 's'rarfns ATENT OFFICE.

ERAS'TU-S E. WINKLEY, or LYNN, MASSACHUSETTS.

AUTOMATIC JACK.

To all "whom tin/1y concern 7 Be it known that I, ERASTUS E. Wmnnnr, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Imfnovements in Automatic Jacks; and I do hereby declare the following to be a full, clear, and exact (lQ:-.e1'l1)tl011 of the invention, such as will enable otliers skilled in the art to which it appertains to make and use the same. A Y

The present invention'relates to boot and shoe machinery and more particularly to a jack arranged to supportand properly position a shoe, wit-h relation to various instru- 1 sewing machines or sole edge finishing mach1nes, -and to provide means for actuating proper relation to the tool of such machines,

the jack to automatically'position the shoe in proper relation to the tools or other'irr Specification of Letters Patent. Application filed September 14, 1898. Serial Nd. 690,934.

mentalities of a machine used in manufac-i strum'enta'lities of such machines the, point of operation of the tool or. other instrumentalities is transferred around the shoe. In order to posit-ion the shoe n it is necessary to'impart' to the jack lateral rockmg movements to bring the bottom of the last or shoe sole into the desired plane transversely of the last, longitudinal tilting movements to bring the bottom of the last or shoe sole into the desired plane longitudinally of the'last and lateral swinging movements to bring theeportion of the edge of 'the last or shoe. sole an proximity with the tool into a position parallel to theline of feed. These are the movements imparted to a lasted shoe in the hands of an operator in being presented to the tool or other instrumentalitics of a machine of the character above referred to such as a shoe sewing or a rounding and channeling machine.

My invention contemplates means for automatically actuating a shoe supporting jack to impart these movements to a shoe supported thereon, the lateral rocking and longitudinal tilting movements taking placeabout a center substantially coincident with the pointj of operation ofthe tool.

' S0 far as I am advised as to the state ofproviding 'tion is therefore not limited to a Patented Mar. 4,1913.

the art it is new to. provide means for automatically actuating a shoe supporting jack to impart to a shoe supported thereon lateral swinging movements to bring the edge of the last or shoe sole in proximity to the tool into a positio-nparallel to the line of feed, or lateral rocking or longitudinal .tiltmg movements about a center substantially coincident With the point of operation of thetool to bring the bottom of the last or shoe sole into the desired plane. My invenjack provided with actuating means to impart all of these movements to a shoe supported thereon, but as to its broader features may be embodied in a jack provided with actuating means to impart one or more of these movements to a shoe supported thereon.

In the preferred form of my invention, mechanism is provided for actuating the jack to transfer the point of operation of the tool around the shoe, and this mechanism is connected to and combined'with the mechanism for imparting the movements, above referred to, to the jack so that the jack is moved at theproper times during the transfer of the'point of operation of the tool around the shoe-t0 bring the shoe into the proper posit-ion'with relation /to the tool.

By providing mechanism foractuating the jack to transfer the point of operation of the tool around the shoe "any possibility of the timed relation between the shoe and the mechanism for actuating the jack to bring the shoe into the proper position with relation to the tool being altered is avoided. It is to beunderstood, however, that as to its broader features my invention is not limited to a construction in which mechanism.

for actuating the jack to transfer the point of operation of the tool around the shoe is provided, but the point of operation of the tool may be otherwise transferred around the shoe, as, for instance, by the feeding devices of the machine on which the jack is used. In this connection I desire to state that the machine in which I have embodied the features of invention above referred to, is the first machine,-so far as I am advised, in which the jack is constrained to move about the point of operation of the tool. as a center when rocked laterally or tiltedlongitudinally to bring the sole into the desired planeas the point of operation of the tool is transferred around the shoe.

"Iaccordingly consider afeature of my mcident with the point of operation of the.

vention to consist in providing means for so supporting a jack that the lateral rocking or longitudinal tilting movements,wh1ch are imparted to the jackas the point of operation of the tool,is transferred around the shoe, are caused to take place about a renter substantially coincident with the point of operation of the tool whether or not automatic means are provided forimparting these movements .to the jack.

The machine in'which I have ei'nbodied the various features of n'iyinvention is also the first machine, so far as I am aware, in which tl'ie' ack is automatically actuated to maintain the portion of the sole in proximity to the tool in substantially the same plane as the point of operation of the tool ist-ransferrcd around the shoe, and 1- ac cordingl coi'isider a feature of my invention to consist in" providing automatic mechanism for so actuating a jack whether or not the movements which are imparted to the jack to maintain the portion of the sole in proximity'to the tool in the same plane take place about a center substantially cointool.

My invention also consists in the devices, combinations. and arrangements of parts hereinafter described and claimed, the ad-- vantages of WlHCll will be obvious to those skilled in the art.

A preferred form of my invention is illustrated in the accompanying drawings in f Figure l is a front elevation of the machine showing the entire supporting frame, but with oneiof the last operating instrumentalities removed; Fig. l shows an enwhich will be hereinafter referred to, Fig.

7 being of a somewhat larger scale t-han'the remaunng' figures; Fig, 9 isa horizontal sectional view taken on. line yF-y Fig. 1';

Fig. 10 a section taken on the line z-2 Fig. 1; Fig l-l is a section on the line z z' Fig; 1; Fig. .12 is a vertical section of -a portion of the mechanism taken on the line y-y of Fig. 1; Fig. 13 is a rear view of the mechanism shown in Fig. 5; Fig. 1 1 is a view showing details of themechanism which moves the jack supporting carriage alon'gits guideways; Fig. 15 is a view showing details of the mechanism which turns therevolving head which carries the jack, and Fig. 16 is a view showing details of the mechanism whielr imparts the longitudinal feeding movement to the jack and also the longitudinal tilting i'novement.

in general the mode of operation of the machine shown in the drawings is as follows: Assuming that in the machine of the drawing there is mounted on the frame a rough rounding and channeling machine aranged to trim off the edge of the shoe sole and eut,a channel in the surface thereof, the action of the machine is such as to accurately position the last with a shoe thereon with relation'to the rough rounding and channeling knives (shown in dotted lines Fig. 2) and to feed the shoe along to be acted on by said knives. Assuming that the. machine of the drawing has a work gage which fits into the crease between the upper and welt and that operation is taking placehn a left shoe, the shoe will be moved along following the curved portion of the shank to a point at the'beginning-of theball portion, during which. movement the forward part 'or toe portion of the last will be tipped downwardly in order that the shank portion shall be .properly'positiofied with relation to the tool or as nearly as possible in'a horizontal plane. l i hcn the feeding movement of the last has brought the gage at the beginning of the ball portion, the heel of the last will begin to descend and-the toe t rise, in order that the ball portion of-the last shall be placed in a substantially horizontal plane,

' and as the work progresses and extends from the ball toward the toe, the heel of the last will-be still further depressed, bringing the toe up, with the forward portion of the bottom of th'eshoe sole in substantially a =horizontal plane, and as the work progresses along the shoe and reaches the inner shank portion the toe will beagain depressedand ing and tilting movement of the last which has just been described, )ositions the bottom of the shoe sole with relation to. the tools, and therefore accommodates the irregular contour of the bottom of the shoe sole to the tools. While the motions of the last just de scribed are taking place the last will be movedin and out' toward and from the gage, and will also be tipped or rocked sidewise and swung laterally. on a vertical axis, in. order to properly position .the irregular outline of the edge ofthe last or shoe sole to the tool. of the surface and edge of the shoe sole It will thus be seen that'all parts will be properly positioned with relation to the operative instrumentalities of the ma chine.

The longitudinal tilting movements of the ise the last is tilted and rocked does not change as'the jack is moved to transfer the point of operation of the tool around the shoe but remalns at the point of operation of the tool durin'g the-entire operation of -trans-.

ferring such point around the shoe. The longitudinal tilting and lateral" rocking V movements of the last do not therefore act to shift the point on theishoe which' is in position to be acted on by'the tool'and ac-- curate and satisfactory work is produced, the longitudinal tilting and lateral rocking movements of the last boil 1g similar to the movements imparted to a shoe when held in the hand of an operator.

'In the machine shownin the drawings the vertical axis about which the last is swung laterally in order to bring the outline of the edge of the last or the shoe sole into proper position with relation to the tool does not pass through the point of operation of the tool, but passes through the central longitudinal axis of the last or shoe sole. The po sition of this axis, however, remains fixed as the point of operation of the tool is transferred around the shoe, except as the last is moved in and out toward and from thegage.

This axis is thus sufficiently close 'to' the point of operation of the' tool at all times to enable the last ,to be swung laterally at the proper times to bring the outline of the edge' of the last or shoe sole in proper position with relation to the tool without interfering with the proper operation of the tool, and this arrangement of the vertlcal axis has proved highly satisfactory in actual practice.

Referring now to the drawings in which like characters of reference indicate like parts, A represents a frame which as shown in Fig. 1, is of such a size as to receive two jacks and their actuating mechanism, one jack being designed tosupport and feed a left last, and the other a right last. Only one jack is shown in the'dra-wing however, which is arranged at the right hand end of the machine and which will in practice support and actuate a right last. The mechanism of each jack is identical so that the description of one will be sufficient to impart a clear idea of the construction and modeof operation of the machine. The supporting frame A-comprises vertical standards or side frames (4 (see Figs. 1 and 2) which arearranged to support at their upper ends across girt or tttble a which may be of any suitable shape and configuration-designed to support. in proper relation to the last carried by the jack. any machine or other inst'i'umentalities other suitable device in the used in the manufacture of bootsand shoes.

InFig. 2 of the drawing has been illustrated in dotted lines diagrammatically the knives of a rough rounding and channeling machine, which will in on the-tableaa'. Each Jack is supported upona swinging jack frame A" which is fulcrumed at-its' lowci end upon a shaft a and about which'the ack frame A has a practice he supported limited swingingmovenent for the purpose of placing the last and jack in operative relation' to the instrumentalities ot' the machine which opcrate on the boot or shoe, and for removing the shoe and last away from the said ,instrumentalitics after they have completed their work on the shoe then on the jack. A suitable stop is provided for the purpose of -l1m1t1ng tlie rmtward movement of the jack frame A and the jack supported thereby,.and as will be hereinafter described the. said frame is retained in its inward position by a suitable automatic latch mccl1anism, which is released just prior to the com-- pletion of one cycle of movement of tl1e. ackoperative mechanism. In suitable bearings a at the rear of the frame A is mounted the main shaft B which extends across thebaclr of the machine from one side frame a, to the other side frame (1, 'andwhich communicates motion to both jahks. Shaft B carries at one end the pulley b which is normally loose on said shaft and upon which it is arranged to have a limited sliding movement,"whereby it will be connected to and disconnected from said shaft by means of a. suitable clutch mechanism to be described.

Any suitable form of clutch device may be ployed to connect and disconnectthe pulley b with and from the shaft B, that shown in the drawings consisting of a collar 6 which is fixedly secured tothe shaft B and which carries a pin upon its face next the face of the hub of the'pulley b, which is arranged to engage with a complementary pin or hub of the pulley b. v

Any suitablemea'ns may be provided for moving -the'pulley I) along the shaft B to connect and disconnect the complementary faces of the hub of the pulley b and the col lar b, but in the machine of the drawings 1 have arranged the mechanism so that said pulley will be moved in one direction by the.

operator to engage the clutch members and willbe automatically moved in theop msite direction. As shown in the drawing the hub of the pulley b is grooved as shown at.

(see Fig. 8) and sald groove isengaged by,

a. forked arm I) fixedly secured to a rod Z) which rod is arranged to have a sliding movement'in suitable hearings in the frame A. The'rod I) is moved in one direction to move thepulley 7) toward the clutch collar '7) by means ofa coiled'spring b which surrounds thelrotl b and which bears at one end-against one of the side frames a, and at necting the sid frames (1-. The worm gear Z1 'isidriven by a worm b which is carried by a. shaft arranged to rotate in suitablebearings b pro'ecting downward from the under face of is across piece-b, and the worm b is driven by a pinion]; fixed to the end of the worm shaft which meshes with a pinion 12 on the main shaft B. The

dog b on the worm gear 11 is arranged to engage an arm. Z)" carried 'by a sleeve'b mounted on the rod b and arranged toturn on said rod. 'The sleeve, 6 1S normallyheld with the arm'b in the path of travel of the dog 6 by means of a spring-b, one end of which engages the sleeve '6 and the other end a fixed collar 1) on the rod b By the above described mechanism, as

the main-shaft B revolves, it will, by means of the pinions b and b rotate the w-orm and revolve the worm gear b and as the dog I) com-es in contact with the arm Z), it will move the sleeve-Z) to the right, as shown in'Fi 5 of the drawings, and cause it, through t. e fixed collar 7), to move the rod 11 to the right, disengaging the'complementary clutch faces of the hub of the pulley b and the fixed collar Z1 bringing the machine-to rest. In order to again start the shaft B rotating, the arm I) must be removed from engagement with the beveled dog I), to secure-which result the sleeve 12 isrotated against the tension of the spring I), by means of a treadleb which is fulcrumed at 5 and which is pivotally connected at Z) to a lever I), which is fulcrumed at I) and which atits rear-end is I connected by means of a rod Z) to a lever b which, as its forward' end is depressed by the treadle mechanisni which has been described, will engage an arm I) carried by the sleeve 6 and cause said sleeve to be revolved on the rod Zr, thus removing the arm I)" from engagement'with the dog 7),

l and permitting the spring-b to move the rod 2) to the left to again connect the come plementary clutch faces oft-he pulley b and the clutch Z).

. As before stated the last: supporting jack' l and its operatingmechanism are duplicated,

that is, there willbe one for a right last and one for a left last, and it isdesigned that one. shall be operating while the other remains at rest, whereby the operator will be enabled to remove a shoe from one jack and replace it with another shoedurmg the time the sleeve holds the v rated. Itnwill thus beseen thatiasthc lugthat the shoe onthe other jack is undergoing theoperation of theinstrnmentalities of the machine carried on the cross head as before described. Both of.these jacks are driven from the same shaft B and each of them is connected by an independent clutch mechanism with said shaft, one of'which is shown in the drawing and will now be described.

In Figs. 5 and 13 of the drawings clearly shown one of the drivingconnections between the shaft B and the jack opcrating mechanism, and also. the devices whereby the driving connections are con nected and disconnected from the shaft B. These driving connections sprocket wheel 5 which is normally. loose on the shaft B andis retained in position between a fixed collar 6 andthe hub of a hanger I); Splined to the shaft B and arranged to slide thereon is a sleeve b which .is' provided with a groove 6? engaged by a forked arm b fixedly secured to the rod 6*. A coiled spring bt surrounding the shaft B presses at one end against a fixed collar I), said spring normallyholding the sleeve comprise a b against the fixed collar 7). The sleeve Z2? is provided with a horizontal projecting 1 arm b which engages a lug b i on the sleeve of the sprocket wheel 6 whereby when the parts are in the position shown in Figs. 5v and 13, as the shaft B rotates, a rotary motion will be imparted to the sprocket wheel b and by means of the instrumentalities which will be hereinafter described impart motion to the jack operating mechanism.

By the above described mechanism it will be noted that not only does the lug b when it engages the arm b 'and moves the sleeve 1) to the right, throw out the oomple-. mentary clutch faces of the pulley b and the collar b, but it also, through the arm I),

carried by the. red I)", moves the sleeve 1) to the right, thus removing the arm 6 from engagement with the lug b, and permitting the sprocket 6 to remain at rest, thus stopping the operation of the jack.

In order to maintain the sleeve 6 in the position to which it is moved .by the movement of the rod 6 to the right, I have. pro, vided an arm I) fixedly secured to a rock shaft 6 to which the lever 19 is connected,

which rock shaft is normally held in such a.

position that the lever b will be raised and the arm b lowered and thrown in engagement with the sleeve 5 by torsional spring 6 whichat one end is fixed to the shaft 5 and at its opposite end engages. a fixed part of the cross piece 6 the arm 6 enters the groove F) of the sleeve 6 when the sprocket ft B and by 5 is disconnected from the s engaging the right-hand flange (Fig' 5), of

parts 72 and b. sepa- 90 b and-at its opposite end against the sleeve ously therewith the sleeve I), thus rem0v-- ingthe arm 6" from contact with the lug b and-the arm 6 from engagement with the collar Z thus permitting the spring If to move the red I) to the left to again connect the pulley b and the shaft B, and simultaneously therewith the spring 6 to move the sleeve 72 to the left throwing the arm I) in engagement with the lug b of the sprocket wheel 6 whereby rotary motion shaft 13 and to said will be imparted to the sprocket. -It may be well to state in this connection that while the driving mechanism of the companiorl pack is substantially the same as the mechanism just described, it is controlled by an independent treadle mechanism, and furthermore that the lever and arm which rotates the sleeve 7), and which controls the clutch mechanism of the sprocket wheel of the corresponding jack, and which corresponds to the lever B and the arm 6 shown in the drawings, will be 1 formed integrally, and instead of being fixed to the rock shaft 6 will be loose thereon so that each jack may be thrown into connection with the shaft B independently. In other respects the mechanism of the corresponding jack is exactly the same as the one illustrated in the drawing, the sprocket wheel b the sleeve I), the arm 5 the lug b and the arm I) being duplicated for the other jack and being located at the left of "the mechanism illustrated in Fig. 1. It will thus be seen that in the complete machine there will be two treadles and their connec-- tions, between independent levers h each lever controlling its own clutch arm,- andv each lever arranged to engage a lug Z) to which it is moved by turn the sleeve 6 it of course being understood that the sleeve?) has two lugs l).

' As has been stated the sleeve 6 illustr )ted in the drawing is held in a position to the shipper rod b by an arm 6 secured to a rock shaft 6 and the sleeve 6 which is not illustrated in the drawing is held in the position to which it is moved by the shipper rod 3) by means of an arm similar to the arm 6 but mounted to turn looselyupon' the red I). The arms which lock the sleeves 6 in a position in which the sprocket wheels 5 are un-' clutched from the driving shaft B can thus be operated independently of each other to release the sleeves 6 \Vhen one of the sleeves is released by the actuation of its locklng arm the sleeve is moved into a position in which the sprocket wheel is clutched to' the driving shaft B by means of a spring b l The arm 6 illustrated in the drawing is actuated by a-treadle connected b a rod to an arm Z) secured to the rock shaft .7) and this arm is arranged when depressed to rock the sleeve (1 to remove the arm 6 from the projection b and allow the shipper rod to be moved to clutch the driving shaft to its driving pulley. The other locking arm is actuatedby an arm similar to the arm 6 but rigidly secured to the look ing arm and also arranged when depressed to rock the sleeve Z) to remove the arm 6" from the projection 6 l/Vhen the shipper rod 6 is released and allowed to move to clutch the driving shaft to its driving pulley one of the sprocket wheels 5" is clutched to the driving shaft, the, other sprocket Wheel 6 however, remaining'unclutched on account of the engagement of the locking lever which has .not been actuated with a sleeve 6.

As hereinbefore explained the swinging frame A of each jack has a swinging movement about its-fulcrum a in order to place the last and the shoe thereon in operative position with relation to the tools of the shoe workingmachine supported on the table a, and I have provided a looking or latching device arranged to maintain the frame A" in its inward position or in the, of the drawing. I have also so constructed the latching device that as the tools finish position shown in F ig. 2

the shoe, the latching or locking device will beautomatically released and the frame A moved outward in order to remove theshoe from operative position with-relation to the tools of the shoe working machine, and while thus thrown outws rd, the jack with the last thereon turns backward to its original position before the operation of the machine is stopped by the contact of the beveled'dog Z) with the arm Z)" to ship the clutch mechanismcand stop the machine.

The latching device of the machine of the drawing is shown in Figs. 5 and 7 and consists of a pivoted latch C which is fulcrumed at c to a bracket 0 fixed to thc c-ross piece 7: of the frame A. The latch C is arranged to engage a lug c projecting rearwardly from the upper end of the frame A. The latch C is normally held in position to engage the lug c by a coiled spring 0 which at one end is connected to a fixed portion of the cross piece I) and at its other end is connected to a lever c 'which is fulcrumed at 0 the upper end of' said lever 0" being connected by means of a link 0" to the latch C. It will thus be seen that as the frame A .is moved inward or backward to place' the shoe in position to be acted upon by tools of the shoe working machine, the latch C Wlll be forced forward in the position their operation upon inits inward position.

I have arranged means for withdrawing the latch C and releasmg the lug a short time prior to the completion of a cycle of operation of the jack mechanism, and such means consists of-a stud 0 carried by the worm gear 12 winch 1s arranged to come 1n contact with the lower end of the lever\ 0 as shown in Fig. 5 of the drawings, and

through said lever and the link a withdraw the latch C, whereby the frame A may be thrown forward about its fulcrum a, to remove the last and shoe away from the shoe working tools. In order to insure that the frame A will be thus thrown outward I have provided a suitable shifting device consisting of a link a Fig. 2 which at one -end engages an eye a at the-upper rear end of the frame A, and which link is connected by means of a spring 0 with a rod connected to the cross head a or some other fixed part of the frame A, t e construction being such that as the latch is withdrawn from engagement with the lug o the springs and rods 0 0 and 0 will rock the frame 'A about its fulcrum and move it to its outward position;

In order to positively insure thatthe'latch C will be in position to engage the lug c as the-frame A is moved inward, I provide a suitable pawl or detent arranged to main tain the latch C in its retracted position against the tension of the spring 0 such pawl or detent being so arranged as to be tripped by the engagement of the lug 0 therewith to release and permit the advance.

of the latch C to engage the lug c This,

pawl or detent is shown in Fig. 5 and consists of a thin plate or lever 0 which at one end isfulcrumed to the latch C and at its other end is provided with an angular slot engaging a pinic on the bracket,c A suitable coiled spring 0 is connected at one end to the pawl or detent a" and at its, other. end to the latch C, and acts to raise I mains until by the backwardmovement, of

' the frame A, to place 'the jack and the-shoe thereon, in operative position, the lug 0 comes in contact with the'pawl'or detent a, depressing said pawl or detent and bringing the upper part of the slot 0 in line with the pin 0, thus permitting the spring 0 to throw the latch C forward in position to engage the lug 0 It s of course to be understood that the latching and locking mechanism just described is duplicated, and that each latch will be released at the proper time by the stud and the lever 0 it of course being further understood that the connection of the other latch with the said lever is of such a character that when-onelatch is in engagement with its correspond' ing lug 0 the other latchwill be opened and set to engage the lug on the other frame A. Each j ack frame A comprises two side frame sections a which are connected together at the bottom by a yoke a, in which is 'formed a tubular sleeve which surrounds the fulcrum a At their rearends eachside frame (i is connected by a cross piece a".

As shown in Fig. 2 of the drawings the upper edges of the side frames a are curvedtheir mner faces are formed and upon curved gu de ways or tracks a, the said guide ways or tracks being preferably formed on the arc of a circle,-'the center of" which will be substantially at a point occupied by the tool or tools of the shoe workng machine, or approximating the working ends of the tools of 'said machine. Supported by the swinging jack frame A is a jack supporting carriage a the saidcarriage a being provided with rolls a? at its upper end which are received within the guides or tracks a. and by means of which the jack supporting carriage'a is supported in the swinging jack frame A.. supporting carriage a is formed of two side plates ai which at their upper ends are connected to a plate a and which at their lower ends support a plate ca and each jack supporting carriage a supports and carries the jack and its operating mechanism. Projecting downwardly from the. plate a" are arms (1 which at their lower ends are provided with suitable bearings a which support a shaft a through which power is communicated by mechanism which will be hereinafter described, to all the operative instrumentalities of the ack. The shaft a is driven from the shaft B by means of Each ack I sprocket chains a and 11.",- the sprocket chain a being driven by the sprocket wheel I) on the shaft 13, and communicating moj tion to a sprocket wheel upon one end of a short shaft a supported at the junction of a suitable hanger, consisting of adjustablebars a and a, the bar a at its upper end carrying a sleeve I) which surrounds the shaft R. Upon another sprocket wheel, on the opposite end of the shaft of, the

' chain a runs, and by which it is driven,

and the said chain a" en 'a 'es a S'iIOUlCOt wheel a upon the shaft (1 The shaft a,

as before stated, communicates motion to -all theworking parts of the jack by means of intermediate connecting which wil now be described.

As hereinbefore stated the jack mcch a iris-ins is moved the'guide so as to rock the last laterally from side'to side in order to bring the bottom portion of the shoe sole along the shank and ball por tion to a. proper position for the action of the shoe working tools thereon,'and approximately places that portion of-the bottom of the shoe sole at which work is going on, in a horizontal plane tosecure which results thesliding jack supporting carriage w is moved along in a curved path controlled by ways a", which results in the rocking'of the last supported by the jack laterally about a center substantially coincident with the point of operation of the 'tools of the .shoe working machine.

The jack supporting carriage a is caused to travel alon the guide ways a by the following mec1anism:Upon the shaft a is aworm d which'meshes with a worm gear (1 supported by the end of a shaft cl? which shaft is fitted to revolve in suitable bearings (i formed integrally with the plate a and-which is held suspended'in said car riage by being secured No. 2, which cam rests on the upper surface of the portion of the bearing (i above the plate a. The rotation of the worm gear (1" will therefore, it will be seen, impart a Iutary motion to the cam No; 2 and also to the cam No; 1 which is fixedly secured tothe shaft (i above the worm gear d. Cam No.

1, see Figs. 11 and 14, is provided with a cam groove (1* which receives a cam roll on a 'one end of a lcverrl? which is fulcrumedat (i to a post pro ecting neath the plate a. The opposite end of the lever d is connected by means of a link 03 to a lever (i which is fulcrumed at cl downward from beto the underside of the plate, a? a-ndwhich side frames a, '50

ment in the machine of the drawing com secured to the under side of the I To the upper end of the shaft (Z below the .cam No. 1, and by means of at its forward end carries a segment gear d which engages a pinion d carried by the lower end of a shaft (Z supported 'in a bearing 03 carried by-an 'arm a? fixedly plate a.

plate a is, fixed a beveled gear (Z which meshes with a curved beveled rack 0 secured to the inner surface of one of the The above arrangementis such that as the shafta rotates it will by means of the worm d and the worm gear cl, impart rotary motion to the-shaft d", thus rotating the lever d link d lever d segment (Z ,pinion (Z beveled 'gear (I and the curved beveled rack d cause the jack supporting carriage a to move back and forth uide or track a".

In order to adjust the range of movement of the jack supporting carriage a I provide an adjustable connection between the lever 01 and the segment lever d suchadjustalongthc curved prising a sliding boxd" which is preferin the hub of the cam being provided 'ing supporting plate a, the plate substantially circular at link a! is pivotally'connected at al to'said sliding box d".

As clearly showninFig. ll of the drawings the end (Z of the lever 0Z v is notched and out sliding movement of the jack supprovided with a'spring pressedor serrations cl, and hold. the i ably provided-with a curved bearing to re -=ceive the end d of the lever d, and the may be withdrawn and porting carriage a for any given size or style of last. v

Mountedupon the jack supporting carriage a isa revolving head E. which comprises two side frames 0. which at their lower end rise from a skeleton base plate e which secured toa genre, the gear 6 (see Fig. 12) upon its under face with a race 6* which rests upon hardened-steel balls base plate 6' is supported upon blocks -e which project vertically from and which are e which are supported in a race e.of a tilt- 6 being its central portion and provided at diametrically oppositeends with upturned ears e (see Fig.1) provided with bearings e in which are fixedly secured suitable trunnions e which are'received in bearings e carried by upwardly projecting arms e of the top plate a of the jack sup- *po-rting carriage a By pivoting the tilting supporting plate c at diametrically opposite points "as shown, the revolving head and the lastslipporting jack are arranged to have a slight swinging motion with the trunnions 6 as the axis, whereby the last may move back and forth toward and away from the gage or the operatlng tools of the machine to accommodate for the conformation of the sides I of the last, and in order to yieldingly hold the last or the shoe thercon against the gage or tool ofthe shoe working machine I have )rovided a suitable s rin c. which is re-:

ceived withina recess-or seat e formed in the plate a. and which at its upper end bears against the under side-of the front of the.- tilting plate 6 and acts to normally swing the plate 'c upward and thus yieldingly hold the shoe or last in contact with the gage of the machine.' opposite point on the plate at I have provided an adjustable stop 0" consisting of a screw which is tapped in a earing in said At a diametrically "late the u 3 )er end of which is arran ed to P Q l 1 act' as a seat or stop for the tilting plate e", whereby to limit the tilting of the plate'by the spring 0 The revolving head E is cause to revolve by the cam No. 2 (see Figs. 1, and which is secured to the upper end of the shaftd and which on its under face has a cam path 6 which engages a cam roll carried by one arm 6" of a;bell crank lever which is fulcruined' at'e to the upperside of the plate a, the other arm e of the bell crank lever carrying a segment gear e which meshes with and drives a pinion a mounted to'revolve about a stud e fixed in the upper surface ofthe plate a. Beneath the pinion e and secured thereto or formed integrally therewith is --a gear '63 which meshes with a gear 0 on the lower end of a shaft- 6 mounted to revolve in suitable bearings projected from the rear side of'the plates a and a and said shaft (2 carries .at its upper end a gear a whichmeshes. f

with the gear a i The above arrangement is such that a rotation of the shaft (P will impart a rotation to the cam No. 2 and by meansof the bell crank lever e" and a and the segment gear o gears e e and c revolve the shaft 6 and through the gear 6 and large gear e turn the revolving head n It is perhaps well to remark atthis point that the rev0lu-- tion of the head E-is not a continuous steady turning-of the head and jack in one direction, but the shape of the cam path e is such, that it will impart to the head andv last a turning or swinging movement about a vertical axis backward and forward in 0pposite directions as the feeding movement of the 'jack progresses, to bring various parts of the sides of the last or the shoe under the action of the tools of the shoe working machine in proper relation to such tools, whereby the last will be swung in first one direction, then the other, according as the curved portion of the last along which'work 18 pro- ,gressing'js concave or convex, in order that the tools 01' the'shoe working machine'may whereby the F supported to revolt act on 'allparts of the irregular edge of the sides of the sole, and that the portion of the edge ofthe last or shoe sole in proximity to the tool may be maintained substantially parallel with the line of feed.

The mechanism for nnpartingthe longi tudinal feedingmoven'ient to the jackco-ir sistsfcjf the shaft F which as shown "in; Figs. e drawing is formed.in"two' ited'by a gimbalajoint f andthe'headsupported thereon is not inter-- fered with. The lower se *tion of the shalf formed in the plate a and 1s ecnnected by means of v I tingmotion of the plate 0 Q spindle b member of the gimbal joint f which rests upon a boss f surrounding the bearing f. Secured to the lower end of the lower section of the shaft F is a bevel gear ftwhich meshes with and is driven by a bevel gear f, secured to one end of a short shaft f mount-' ed in the bearing f, carried by the lower end .the plate a.-

of a'bracket f secured to the under face of Shaft f at its outer end carries a sprocket wheel f from which runs a chain f which is driven from the sprocket wheel f? on the shaft (1 whereby as the shaft a rotatesgga rotary motion will be'impartedto the shaft F. ported by a bearing f carried'byupwarri y projecting armsf secured to; the tilting plate 0", and at its lower endjthe: upper section of the shaft F is secured-by a pin 7 to the upper member of thegimbal joint f, and to the u per end of the-upper section of the sha t F is secured a bevel gear which meshes witha' bevel gear f secured to a shaft 'f" arranged to rotate in a bearing f supported by the revolving head E. The shaft f upon its opposite The upper section of the shaft F is $11 end outside of the bearing f carries a gear f which meshes-with an intermediate gear f which in turn meshes with a gear f carried by a shaft f? mounted in a bearing f projecting upwardly fromtheplate 6 Onthe shaft f is a worm f which I meshes with a worm gear f whichis prm vided with a tubular sleeve" f tothe u'p-- per end of which are secured the double .cams Nos. 3 and 4,. cams Nos. 3 and 4: and

the worm gear 1" being arranged to revolve about astud f secured. in a tubular hearing f which is sup-ported by the plate a. The'cam No: 3 is provided witha ca'm path f which receives a cam roll on an arm f of a lever fulcrumed at f in-a bearing carried by one of the uprights e, theoppo meshes with a round face gear f carried I the lo'were'nd of a suitable extensible shaft 7"; shaft ffibeingsupported at its" lower end in a bearing f which bearing is carried by a swiveling arm f, arranged to turn about a fulcrum f. v The jack H is shown in and consists of a plate h which at its forward end has a suitable toe support fi" aild Figs. 3' and- 4 1 'atits rear end a suitable heel support or I The plate h is supported by "slides h which are fitted to horizontally nected at opposite ends to a sprocket chain 72, which at one and runs around an idle sprocket wheel [to supported by a bearing h projected from one end of one of the plates Ir. At the opposite endof the plate 727 the sprocket chain lz passes'around the sprocket wheel h secured to a short shaft h mounted in a bearing 71, and the shafth is connected by a gimbal joint 71 with the extensible shaft f.

The above described arrangement is such that a rotation of the shaft F by means of the shaft f and 'its connections with the shaft a, will through the bevel gears 7 and j' shaft f", and gearing f, F" and f the worm f, worm gear f, lever f f, link f3, segment f gearing f, f and f, revolvethe shafts f and h and by means of the sprocket wheel h and thesprocketchain h move the slides h along the guides h thus moving the jack and last longitudinally. In this connection it .is to be noted that while the cam No. 3 is supported by and partakes of the turning move ment of the revolving head E, the said cam in its operation to effect the longitudinal feeding of the jack is entirely independent of the mechanism which revolves the head E, and the movement of the cam with the head will not affect the longitudinal movement of the jack, such movement being effected by the rotation of the cam with relation to the head E.

By the mechanism so far described the jack has imparted to it, three movements, first, a lateral or sidcwise rocking movement with relation to the tools of a shoeworking machine. whereby the shank portions of the last upon opposite sides thereof will be brought. into proper horizontal position; a lateral swinging or turning movement about a. vertical 'axis to bring all parts of the curved sides of the last in proper relation to the shoe working tools, and to turn the last as the work progresses around the toe, and also a longitudinal feeding movement. 1

it is necessary in order to position the last to the tool of the machine with relati n 1 the center of which is substantially coincidentwith the point of operation of the tools as shown in Figs. 1. 4 and 16 and at its opposite sides is received in curved guides 2' (see Figs. 1, 2 and 16) which are supported by the standardse of the revolving head E, and the plate h is reciprocated along the curved guides 2 by means of a bevel gear 2' secured to the upper end of a short. shaft '5. arranged 'to revolve in a hearing i carried by the bracket 2' projecting inward from one of the cross-bars of the frame E.

.At its lower end shaft i carries'a pinion '1' which meshes with segment gear i carried by an arm of a lever fulcrumed at 1?, the other arm 2" of the lever being pivotally connected at i to a link i, which in turn is pivotally connected .to an arm 2' of a lever fulcrumed at f, the othearm iof the lever carrying a cam roll 71 which engages the cam path in the cam No. 4s The bevel :Icar 2' engages a curved rack 2' secured to the plate 70 the operation being such that upon a revolution of the. cam No. 4' it will through the level-"i and 5, link i, lever i and 2",segment gear 2', pinion t7, bevel gear '5 and curved rack 2", impart a reciprocating movement to theplate h" and the last support H supported thereby. The cam No. 4 is of such shape that during one cycle of movement of the machine, the plate 72. will be moved several times back and forth for varying distances along the curved guide. thus lowering or raising the heel or toe as the case may be, to place the bottom surface of the last at the point where workis being done, in the proper position for the action of'the'tools tlmreon.v It will be evident that 1f the guides were rigidly supported in the standards 71 of the plate 117, a.

movement of the plate 71 along the curved guides would operate to tilt the jack longitudinally about a center coincident with the point of operation of the tools regardless of the position of the jack on the guides it". The guides 71' are however maintained in a substantially horizontal position during the movement of plate 71 as will be described. but as the jack is yieldingly supported by the slides it" which travel in the guides d" by means of suitable springs as will hereinafter appear the maintaining of the guides in a horizontal position has no malcrial c'ltcct on the tilting movement of the jack abovedescribed the springs acting to hold the shoe in contact with the tools or the gageatall times, the .-c-nncction between the link and the lever f, and also the connection between the link i and the lever arm I is an adadiustable connectiom substantially the same as that between the link I) and the arm (Z of its actuating lever, which has been hereinbefore described.

it will be noted that In order to insure, no matter what the angular disposition of the last may be in a longitudinal line from the toeto the heel, the correct feeding of that portion of the shoe sole or the last at which work is bein performed in substantially a horizon'ta plane,.I have arranged the plates b which support the guides h along which the slides I); move, to always maintain their horizon talposition, during the movement of the plate h" along its guide way for the purpose of effecting the tilting of the last. To secure this result each plate IE5 is pivotally secured to the upper end of the standards A, the

said standards being provided with suitable bearings 0 which receive pins or studs 0 I projected from the outer face of the plates h, and in order to maintain the plates h in alinement with relation to each other in the same horizontal plane, or in parallel horizontal planes, 1 have secured to the outer ends of the studs 0- arms 0 which project downwardly as shown in Figs. 1, 4 and 16 and said arms at their lower ends areprovided with rollers 0 which engage segmental guide grooves 0* formed in plates secured to the upper endsof the side plates 6 of the head E, the said plates carrying the guide grooves 0 being arranged in different arcs and so disposed that during the horizontal reciprocation of the plate it when moving in one direction, the arms 0 will maintain the plates ]L5 in a horizontal position notwithstanding the change in the ang'u'lar position of the standards it with relation to a vertical plane.

It will be noted that as the plate k is moved along the guideways i, that th roll 0 at the end of one arm 0 will be caused to travel downward along its guide 0*, while the roll of the opposite armwvill be caused to travel upward along its guide, and inasmuchasthe arms 0 are fixedly secured to the studs 0 of the guideplates h, such plates will always maintain ifhorizontal position notwithstanding that they are supported by the plate h which moves in an' arc of a circle. t

In order to allow the guides h to be maintained in a substantially horizontal position without producing any material effect on the tilting movements of the jack and to allow the jack to rise and fall to keep the shoe in contact with the tool or gage at all times I have arranged to support the jack plate It at opposite ends by vertical slides l: which are received in vertical guides k" formed in the inner faces of the slides h One of the slides l: is providedwith stud k upon which the rear end of the plate h is supported and about which it is free to turn, and the other slide is provided with a stud k upon which the forward end of the plate It is supported and about which it is free to turn, and in order to insure that the downward yieldinginovement at each end of the last shall same and thusinsure the maintaining of the last-in roper position to which it may have,

been p aced by the mechanism hereinbefore described, each slide is is provided with v a rack and 70 the rack Z? engaging a pinion is carried upon one end of an extensible shaft ,k mounted in'suitable bearings k and k carried by the plates it. The shaft is? at its opposite end carries a gear 10 which meshes with an intermediate gear 10 which in turn meshes with a rack k of the-slide is.

In order to permit the tilting movement of the jack by the reciprocations of the plate h and the rocking of the plates h which has been described, the shaft 70 is madeof two sections having a sliding movement with relation to each other and is also provided at opposite ends with gimbal joints is.

In order to maintain the slides 70 in their elevated position each of said slides is connected by means of a rod 70 with a suitable spring 70 connected at one end to said rods, and attheir opposite ends with a fixed support Z0 said springs acting to normally raise the slides 7c in their guides is, and in order to limit the upward movement of the I slides 70 I have provided a suitable stop is fixed to one of the guides is andarranged to engage the upper edge of one of the slides k.

iThe heel support or-the spindle k may be arranged to be adjustable longitudinally toward and from the toe support, or verticallyin any suitable manner; In the-machine of the drawings said s indle h is carried by a carriage Z arrange .to be moved along a guide way Z in the plate h and fixed at the desired point along said guide way 1 by means of a spring bolt Z one end of which is arranged to engage suitable notches 2* formed along one side of the guide wa Z and to secure the vertical adjustment 0 the spindlehfiit is carried by a threaded stem Z arranged in suitable hearings on the carriage Z and engaged by a threaded nut Z between said bearings.

i The operation of .the machine is as follows :-Assuming that a rough rounding and channeling machine is supported upon the cross head a and that upon the jack shown in Fig. l-of the drawing there is a rightlast and shoe, and that the swingingl i 20 jack frame A has been moved inward an locked by the latch O, with the last in the rounding 

